MAC215986
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Revision A
4.9
Knife Drive System
The knife drive system transforms pumped hydraulic pressure into a mechanical motion that strokes a series of serrated
knife blades at the front of the header back and forth to cut a variety of crops.
4.9.1
Knife Drive Box
Knife drive box is driven by a hydraulic motor and converts rotational motion into the reciprocating motion of the knife.
1028072
A
B
Figure 4.170: Left Side Knife Drive Box Shown
–
Right
Side Similar
Single-knife headers have a knife drive box (A) and motor (B) on
the left side; double-knife headers have a knife drive box and
motor at each end.
Checking Oil Level in Knife Drive Box
Single-knife headers have one knife drive box and double-knife headers have two knife drive boxes. To access the knife
drive box(es), the endshield(s) must be fully opened.
DANGER
To prevent bodily injury or death from the unexpected start-up of the machine, always stop the engine and remove the
key from the ignition before making adjustments to the machine.
1.
Lower the header fully.
2.
Adjust the header angle so that the top of the knife drive box is level with the ground.
3.
Shut down the engine, and remove the key from the ignition.
4.
Open the endshield. For instructions, refer to
